Software Development Forum

Hi all, I have a problem reading data from my file for example this is my textfile CODE MARKER //Names of columns in my table PKY KELLYS ELM ELMANS OOC OLIVER QRT QUATAR A user is asked for code, when the code is entered, the corresponding name is displayed eg …

I have an assignment for school that involves creating a java program that creates a basic class. I'm getting an error missing return statement, if i try to compile. What could be wrong here?

Hi, I'm writing a general Node class in C++ right now. I don't know how to make it having an ability to carry a general object. For example, I want my Node class could carry a general Object. It might be a "Book", a "Person" or an integer. I know …

Hi. So, my assignment is to convert an infix expression into a postfix one, and then evaluate it. I already completed the infix to postfix part. I have a small problem evaluating the postfix expression though. The expression deals with booleans, and allows the ! operator. I'm not sure how …

Basicaly I'm trying to do this [code=C] int create_student(student_data *student){ printf("Nome do aluno:\n"); fgets(student->name,name_limit,stdin); //wtf? printf("Número do aluno\n"); fgets(student->number,name_limit,stdin); printf("Aqui devia estar um nome %s",student->name); return 1; } [/code] Where student is a custom struct, student->name is char array. For some reason it seems to skip the fgets. Replacing with …

Hey, I'm trying to get my program to run correctly. I can get the black screen to come up after compiling, but it does not say "Press any key to continue...". I'm reading from input file and want to see results in an output file. My ultimate goal is to …

I've tried searching the web and cant find anything to help me. I'm trying to create a 2D java maze application and have come up with the code below. It generates the maze and GUI no problem, and I've worked the code out to create a xPosition and a yPosition …

Hello, I am relativly new to programing, and I need some help on a lab project. If anyone out there can explain why I am getting the following errors. 55: inlab was not declared in this scope In funtion void selectionSort(char (*)[25], int) 74:error: Stropy was not declared in the …

hello, i'm a newbie programmer (and to python, double trouble :) and running into issues reading and writing files. i'm successfully running the code below to manipulate and remove the first few lines of a text file. The text file (file1.txt) is approx. 329kb but when i run the code …

Hi Members Its the first time iam writing in this forum ,iam a new member from TANZANIA I want to design the LIBRARY MANAGEMENT SYSTEM using VISUAL BASIC 6.0 Can you help me to wite the code for SARCHING BOOKS WHICH ARE STORED IN MY DATABASE AND RETRIEVE IN A …

Hi I am doing this simple program in visual basic express Sum.Text = Val(Num1.Text * 3) + Val(Num2.Text) + Val(Num3.Text) - Val(Num3.Text) This allows the user to enter number of wins (which gets x by 3) number of draws and number of losses. I have to limit the user to …

The title says it all, i was just wondering if i made a simple text based game what would i use? Like I've heard about things called sockets, ports etc? Just in curiosity

Hey, I was just mucking around and made a simple random number generator and made a "love percentage game" but, if you re-open the .exe and type the same names in it gives another completely different percentage, would i save the names to do a file or some kind? [code=c++]#include …

Hi, I wrote a program to input an INFIX convert it to POSTFIX and then evaluate it. But the function 'evaluarRPN' used for evaluate POSTFIX some time work and some time not, depend of the input. For example: (8*9-8/5+6)*(5-9) = -305, but the program display -308 (8+9) = 17, display …

[B][COLOR="Red"]1)[/COLOR][/B] Single Line Textbox can have a horizontal scrollbar-i READ FROM D BUK. But no scrollbar is going to attached with single line textbox. Can a single line textBOX HAVE hor. scrollbar. [B][COLOR="Red"]2)Selstart and SelLength[/COLOR][/B] Private Sub Command1_Click() Text1.SelText = UCase$(Text1.SelText) Label1.Caption = Text1.SelStart Label2.Caption = Text1.SelLength End Sub I …

I need help with manipulating my computers clock through a c++ program and i have no idea on how to make the program. Does anyone have any idea on how to do this?

double b = 3.0000; char s[20]; sprintf(s,"%f",b); Here char s[20] is fixed it should take values however small be it.I will be happy if I get tat 20 at runtime as a varible with correct allocation size.Else for small value ter will be wastage of memory.It will allocate 20 for …

Hello, I strongly need your assistance what is needed to modify in order the board to inherit the complete functionality of the game. The clienthandler class contains all the methods for playing the game on the terminal [please check the code] Thanks in advance for any help ! [CODE=java] import …

I'm a Comp Sci I student in college, and I have an assignment to make a quick sort that can sort vectors up to size 32000 with no problem. So, my program has been having a lot of trouble with big numbers, and every once in a while, I get …

Hi, I am new to Java and stuck at a problem. I have something like following- [CODE]package X public abstract class A { A(int a) { this.a=p; } protected int p; abstract int func(); } package Y public class B extends A{ B(int b) { super(b); } B() {} //p …

I'm trying to read data from a file using dynamic arrays, everything is great now except for one thing: if I have a file with lets say 20 students' IDs and their scores before starting the reading proccess, I did this: string *studentID; double *testScore; cout<<"Enter number of student: "; …

Hey, Yet again i was just mucking around on DEV-C++ and made this code.. [code=c++]#include <conio.h> #include <iostream> using namespace std; unsigned long Double(unsigned long doubleMe) { return (2 * doubleMe); } int main() { unsigned long numberToDouble; unsigned long doubledNumber; cout << "Enter a number you would like to …

I want to copy the selected items from listbox1 to listbox2. I know how to copy all the items but not selected. [B]Private Sub Command3_Click() For i = 1 To List1.ListCount List2.AddItem i Next End Sub[/B] Above Code will copy all the items,But I want to copy selected items.

hi, I am new to j2me. I want to add more than one image into a form and display those images as thumbnails, so that when i click any one of the thumbnail i should get the full view of the image. Can anybody help me regarding this issue?

How does one declare a string as a data member in a class? I tried it this way, but my compiler says that's not it [code] class cdrom { public: cdrom(); void loadinfo(); float returncost(); void displayinfo(); void changedata (); private: float cost; string name; string cdtype; }; [/code]

Hi I am trying to write a script that converts centigrade to fahrenheit and vice versa I need to use a sub-function to perform the calculations. Can anyone help me get started on this I am kinda lost and will like help learning this thank you

Hi All, In my network setup all our UNIX/Linux Servers are standalone.So when a user joins i have to create a user account in all the servers. I will be using the same user acc to create the user account across servers So if you can guys provide me a …

anyone know code so that i have to insert a username into the program before i can continue doing anything else?

I am writing a doubly linked list, but i am having problems inserting. Here is my code for the node, and main. The issue is in the main when i call insert, it gives me null. How can i get the node to point to head, and tail(insert it). Help …

Hello all, I have an assignment to create a base class for a vector. Now after reading through the instructions I am still unclear the instructions. I am NOT asking for you to do my homework! I just need some clarification. PLEASE DO NOT POST ANY CODE! Here is a …

I am getting this error and i don't know what it means. this is my code, i do have header files but i didn't include them. [code]int main() { [LIST=1] [*] cout<<"Welcome to guitar hero"<<endl; [*] cout<<"Try and press the correct letters on the line"<<endl; [*] cout<<"You will use the …

I have written the following code that I will post below. Each time I try to compile it I receive the following error. [CODE]1>main.obj : error LNK2001: unresolved external symbol "public: __thiscall OrderSet::OrderSet(void)" (??0OrderSet@@QAE@XZ) 1>C:\Users\Bill\Desktop\School1\c++\c++ spring cs2\program2\Debug\program2.exe : fatal error LNK1120: 1 unresolved externals[/CODE] Note I am using Visual Studios …

I am working on my senior project and I am using C#.net and Microsoft Access to create a program that lets the user store information into a database. I have many tables but the primary table that mostly everything connects to is the customers table. Well I know how to …

may i know how to add sqlexpress database to my visual studio project while iam deploying... (i tried by simply adding database into my project through solution explore before deploy , but while instaling deployed project into client machine ,on that time i cant access the data's from database.) can …

I am working on this program and I am getting compilig error here is the code:- [CODE]#ifndef ACCOUNT_H #define ACCOUNT_H class Account { public: Account(double = 0.0); void credit( double); bool debit (double); void setBalance(double); double getBalance(); private: double balance; }; #endif[/CODE] [CODE]# include <iostream> using std::cout; using namespace std; …

what does cin.get function do??

I had got an assignment for sorting some data.. "Make a c++ program which takes data from a TEXT FILE, then sort it".. i made this program.. [code=cplusplus] #include <iostream.h> #include <conio.h> int main () { clrscr(); int sort[8]; cout<<"Enter DATA to be Sorted\n"; for(int get=0;get<=7;get++) cin>>sort[get]; //cin saves the …

1) Write a program that asks the user to input an integer and the output the individual digits of the number. 2) Write a program that asks the user to input an integer and then output the number with the digits reversed. i don't really know how to this using …

I need to know how to create a triangle, and how to fill it with color. I am new to programming and would appreciate the help. I am not running the applet in a web browser, just executing it. Thanks.

Hey, Was bored so *TRIED* to make this simple countdown program but i'm just not sure what to put in the for loop? [CODE=C++]#include <iostream> #include <windows.h> using namespace std; int main() { int countDown; cout << "Enter a number to count down from : "; cin >> countDown; for(int …

[code] import javax.swing.JFrame; import java.awt.*; import java.awt.event.*; import javax.swing.ButtonGroup; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JRadioButton; import javax.swing.JTextField; import javax.swing.UIManager; public class GUINew extends JDialog implements ActionListener { public static void main (String [] args) { protected JButton ok; protected JButton cancel; protected ButtonGroup type; protected JTextField …

[code=cplusplus] struct wheel_node { int contents; wheel_node* next; }; typedef wheel_node* wheel_ptr; class wheel { private: wheel_ptr arrow; public: wheel (); void print (); void spin (int distance); void move_to (int number); }; [/code] The constructor wheel creates a circular linked list as follows: arrow -> 5 -> 40 -> …

I am currently attempting to program my first game in C++ using Microsoft Visual Studios Express 2005. After doing some research, I found that it is missing several packages including the one that I need (windows.h). That's free software for ya. Anyways, I was having trouble finding a way to …

I'm a linguist (Python newbie) trying to use Python to help me with some simple NLP processing. I have extracted verb + preposition + VBG triples from the British National Corpus, so I have large csv files containing stuff like this: plan,on,selling criticised,for,getting opened,after,receiving were,in,identifying visited,before,returning recruited,from,including attended,by,including given,by,joining ... …

Hey, I was using some code to write int's defined by user to a file but found when you use [CODE=C++]myfile.open ("lover_names.txt"); myfile << firstLover << " " << secondLover << " " << lovePercent << "%\n\n"; myfile.close();[/CODE] It replaces the other text in the text file, the answer will …

Im working on a game like risk and for the main menu im having trouble with the music. the code i use [CODE] id = Shell("c:\program files\windows media player\mplayer2.exe /play /close G:\My Music\Various Artists\The No.1 Classical Album\04 Ride of the Valkyries.wma", vbMinimizedNoFocus)[/CODE] is just to open and play the file. …

Hi I`ve just started working with graphic in c++.I want to display a stack on the console . I taugth draw a rectangle as a stack.but the problem is I don know how to draw a rectangle! I write some codes but my compiler (Dev-c++) couldn support them. I found …

Hi all, I think I might try my hand at creating a text based adventure game in java. No I don't need cutting edge graphics, or state of the art fatalities etc what I am looking for is a solid, story driven adventure/RPG game. I would appreciate some advice on …

Its an assignment I have to submit, we have to make a maze using stack and input text file but I admit that i'm tottaly lost in this, something wrong with my code (or really alot of mistakes) please help! #include <iostream> #include <fstream> using namespace std; struct node { …

Does anyone know if rs-232 c++ code written with the windows.h library is easily changed to support rs-485 and rs-422 or if its not similar at all? Thanks.